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United States Patent | 5,549,988 |
Reichert ,   et al. | August 27, 1996 |
An electrolyte system (40) for use in connection with an electrochemical cell (10). The cell (10) includes a positive (20) and a negative (30) electrode, and an electrolyte system (40) disposed therebetween. The electrolyte system includes a polymer matrix fabricated of a polyacrylic acid or polyacrylic acid derivative polymeric material. The polymer material is adapted to engage in electroactive species. Examples of electroactive species may be either an acid or a base electrolyte, such as KOH or H.sub.2 SO.sub.4.
Inventors: | Reichert; Veronica R. (Sunrise, FL); Venugopal; Ganesh (Plantation, FL); Eschbach; Florence O. (Sunrise, FL) |
Assignee: | Motorola, Inc. (Schaumburg, IL) |
Appl. No.: | 402426 |
Filed: | March 10, 1995 |
Current U.S. Class: | 429/317; 429/206 |
Intern'l Class: | H01M 006/18; H01M 006/22 |
Field of Search: | 429/190,192,204,198,206 252/62.2 361/523,525,526,524 29/25.42,25.03 |
3708220 | Jan., 1973 | Meyers et al. | 350/160. |
3765950 | Oct., 1973 | Lauck | 429/190. |
4121022 | Oct., 1978 | Dick et al. | 429/264. |
4168352 | Sep., 1979 | Dick et al. | 429/204. |
4563404 | Jan., 1986 | Bahary | 429/206. |
4778737 | Oct., 1988 | Sehm | 429/206. |
5166008 | Nov., 1992 | Tomida et al. | 429/190. |
5433892 | Jul., 1995 | Czech | 252/62. |
Foreign Patent Documents | |||
5204197 | ., 1993 | JP. |
F. Buchholz Trip, vol. 8, Aug., 1994 pp. 277-281 Recent Advances in Superabsorbent Polyacrylates. |